Was Buddha's word final?

If not, let the one with the final word come forward. Until that happens, can we agree to use Buddha's words carefully and as the gold standard
for addressing the wordless with words?

"AS LONG AS THERE IS WORD DISCRIMINATION THERE IS THE FAULTY NOTION OF PERMANENCE AND IMPERMANENCE."
"AS SOON AS AN ASSERTION IS MADE, ALL IS IN CONFUSION. When it is understood that there is nothing in the world but what is seen of the mind itself, disputes never arise."

Lankavatara Sutra,  Suzuki's translation, Ch. 5, p. 140.

How can the teacher/teaching bring our cognitive awareness as closely as possible to the end of word discrimination? In doing this we can recognize that there will be confusion, and disputes will arise.

BUDDHA'S 108 questions from the Lankavatara can go here.
The LOTUS SUTRA is said by some to be Buddha's final teaching.